// Modules to control application life and create native browser window
const { app, BrowserWindow, globalShortcut, ipcMain } = require('electron')
const path = require('path')

function createWindow() {
  // Create the browser window.
  const mainWindow = new BrowserWindow({
    width: 1000,
    height: 600,
    frame: false,
    transparent: true,
    webPreferences: {
      preload: path.join(__dirname, 'preload.js'),
      nodeIntegration: true,
    }
  })

  // and load the index.html of the app.
  mainWindow.loadFile('index.html')

  // Open the DevTools.
  // mainWindow.webContents.openDevTools()
}
function getMainWin() {
  if (BrowserWindow.getAllWindows().length > 0) {
    return BrowserWindow.getAllWindows()[0];
  }
  return null;
}
function showMainWin() {
  var win = getMainWin();
  if (win) {
    if (win.isMinimized()) {
      win.restore();
    }

    win.show();
  }
}
function hideMainWin() {
  var win = getMainWin();
  if (win) {
    win.hide();
  }
}
// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.whenReady().then(() => {
  createWindow()

  app.on('activate', function () {
    // On macOS it's common to re-create a window in the app when the
    // dock icon is clicked and there are no other windows open.
    if (BrowserWindow.getAllWindows().length === 0) {
      createWindow()
    }
    showMainWin();
  })


})

// Quit when all windows are closed, except on macOS. There, it's common
// for applications and their menu bar to stay active until the user quits
// explicitly with Cmd + Q.
app.on('window-all-closed', function () {
  if (process.platform !== 'darwin') app.quit()
})

ipcMain.on('synchronous-message', (event, arg) => {
  if ('hide' == arg.command) {
    var win = getMainWin();
    if (win) {
      if (win.isVisible()) {
        win.hide();
      }
    }
    event.returnValue = { code: '0000' };
  } else if ('regist_shortcut' == arg.command) {
    globalShortcut.register(arg.key, () => {
      var win = getMainWin();
      if (!win) {
        return;
      }
      if (win.isVisible()) {
        hideMainWin();
      } else {
        showMainWin();
      }
    })
    event.returnValue = { code: '0000' };
  } else {
    event.returnValue = { code: '9999' };
  }
})

// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.

